Abstract
In recent years, asymmetric reactions catalyzed by the carbohydrate-based catalysts are the most intensively studied as they have been recognized as versatile starting materials for chiral auxiliaries, reagents, ligands and organocatalysts. The design and finetuning of carbohydrate-based catalysts is facilitated by the multiple functional groups present within this class of compounds. This strategy has provided unique ligand moieties which combine the performance of “privileged catalysts” with increased flexibility and accessibility. With the development of sugar-based ligands in selective catalysis, D-glucosamine has been selected as a cheap and readily available chiral scaffold for the synthesis of a series of novel ligands and organocatalysts. D-glucosamine-derived chiral catalysts has gained continuous increasing interest in asymmetric reactions. In this review, key development of asymmetric reactions catalyzed by Dglucosamine- derived chiral catalysts is summarized.
Keywords: Asymmetric reactions, D-glucosamine, Chiral ligands, Organocatalysts.
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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